Latch.



.. S. CHADVVICK.

LATCH.

APPLlCATlON FILED SEPT. l, 1914 "il y? n l 12 l m Patented July 2, 19H3.

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LATCH.

Application filed September 1, 1914. Serial No.,859,719.

To aZZ 'whom it may concern.'

Be it known that I, LEE S. CHADWICK, a citizen of the United States,residing at East Cleveland, in the county of Cuyahoga and State of Ohio,have invented a certain new and useful improvement in Latches, yof whichthe following is a full, clear, and eX- act description, reference beingyhad to the accompanying drawings. f

This invention relates generally to latches, Y and particularlyy to animproved latch that is especially suitable for use lin connection withoven doors.

The invention has for its object the provision of a latch that is simpleof construction and operation; the provision of a latch that activelymaintains a tight joint between the closure and frame in connection isvery durable and that is comparatively.y economical of production; andthe pro-V vision of a latch that is neat andattractive of appearance. f'

To these ends li provide a latchthat 1s composed, principally, of Vsheetmetal-stamp# ings `and is constructed, in Aits preferred form, asillustrated in' the accompanying drawings, wherein Figure 1` is afragmentary front elevation of an oven that is equipped with a latch ofmyfinvention; Fig. 2 is a plan, and Fig. 3 a right hand end ele. vationof the parts shown in Fig. 1; while Figll is a central horizontalsection on the lines 41-41 of Figs. 1 and 3.-

llnthe drawings the wall 1'of the oven is shown at l and the door at 2,each of which is formed of a-metal shell that is filled with somenon-heatV conducting material, such as ofthe base plate, and thesebrackets extend i beyond the edge of the door and have their outer endsturned down to form stops 8.

e the base plate 6 and brackets `7 are pref Specification of LettersPatent.

The cooperating edges of Patented duly 2, 1216.

of my invention, comprising `a single sheet metal stamping. 1t will beobserved, especially from Fig. 4, that the forward edge of the bar 12'isturned back upon itselfat 13 in order to give al smooth round surface to.60 are connected by a bar 12, the end pieces 1l` and the bar 12, in thepresent embodiment the forward edge of the bar, and also for i thepurpose of strengthening the same. Between the outer ends of the endplates 1l there is supported a handle l5 which is preferably formed of apiece of tubing, the ends whereof are contained within the caps 16. Thehandle and caps are clamped in place by means of the tie rod 17 whichhas its threaded ends received by the hollow screws 18 which passthrough apertures in the end plates `11 and are screwed firmly onto theends ofthe tie rod 17. This construction of handle is especiallyadvantageous when the grip, comprising the tube 15, is nished in enamel.It iswell known that enamel is brittle and that it will chip and scaleoft" if the partsto which it is applied are distorted or strained.Further# ln the construction above described, the end caps 16 concealthe ends of the enameled` tube 15, where the enamel coating is apt to beuneven and unsightly, and these caps may be nickel plated or providedwith some similar finish that will not be affected by the clampingaction to which the caps are subjected.

A leaf spring 20 is secured to the base plate 6, adjacent each of thebrackets 7, by a screw 21, and the free end of each spring is turned upunder the rear edge of the barA 12. Under theiniiuence of these springs,the swing member of the latch is caused to assume what will be referredto as its normal position, with the edges of the end pieces 11 inengagement with the stops 8.

Secured vto the forward edge ofthe oven wall 1, is the keeper 25 whichis formed of resilient material and has a base flange 26 through whichthe keeper is Secured te the oven wall, by means of the screws 27. The lfree edge of the keeper is turned toward the door 2, at substantiallyright angles to itsl bodyportiomand is then turned back upon itself asshown at 28. f By this arrangement a smooth, rounded edge is given tothe keeper, somewhat similar to the rounded edge p13 .of the bai-12. u Y

Itrwil'llbenoted that when the swinging member of the latch isinnormalipositionl and the door is moved to cause the bar l2 toapproachthe keeper A25,1the-advancing side of the bar 12 will bepresented to the roundedfedge 28` of the keeper in an oblique plane,'similar to the action ofthe inclinedv nose of the ordinary vlatchbar,with Vrespect to its keeper. `rIn the :act of closing the'door,

passedeach other` and they forward edgey of l the bar-fis containedwithin'the angle lbetweentthe overturnededge 28 and the body portionfofthe f. keeper 25,the springs `20 .and

" the. keeper will remain under sutcient ten1 y howevenfwill r'permit-'aslight separationlbeesion to .'causezthe fedgeof the'doorf to beconstantly `gpressed:v against its seat and thereby nsllle.afperfectfjointf a l w The resiliencyr of vthe keep erv land sp rings,

tweengthe'coperatingedges ofthe door and wall, 'should the :pressure fwithin the oven befbrought to a sufficient height; .byi the.' gens,

erationaof'steam therein, to counteract the e'ectfof thefjlatch: Thisisr clearly -ianzad-` vantage lation's. I

'I havefshown-fherein what Il consider, at-

the present time', to be the preferred embodi- `ment of my invention,althoughl do not limit myself to suchf'construction except as requiredthe' terms ofthe; annexed claims andjtheT state of the' prior f art.Furthermoreft have referred to the part wherewith f the'v edge of :fthedoor or closure coperates, as

the oven wall.` This might obviously be the edge'pof any opening whichthefdoor is intendedtoclose, and mightbetter be" con-I' sidered,lbroa'dly'fa frame/It is thus referred to in the claims. y

thus described my invention', what I c'laim'iS--- Y Y*`1..Thefcombinationg'with a pair of ele'- ments comprising'one aframeand thef other a. closure therefor, of abracketthat-is car-kried-by'Qoneelementfand having a stop, a latch member pivoted'j toithelbracket 'and havingv la keeper fengaging portion, meansV for moving the;latch "member" toward thev stop; and/a yielding keeper supportedv Iby`the otherelementthat `is arrangedto be engaged by'pth'e keeper engagingportion 'of the latch,V

men'iber, Sai'd`keeper, iwhenengaged', serving Y las .ittprovi'des-thenecessary ventil a closure therefor, of a base plate that is ,carried byone element, a pair of brackets which extend from the base plate andbcyond. the edge of the closure, one .of said vbrackets vhaving a stop,a latch member which comprises .a pair of end plates that 'i5 areconnected by a bar, pivotal connections between the end pla-tes Vand theaforesaid brackets, a springfor moving the latch member into engagementwitli the aforesaid stop, and a keeperY of resilientv material that issupported by the other element in a position to be engaged by the bar ofthe latch meniber, said keeper, when engaged, serving to hold the latchmember ont of contact with the aforesaid stop.

' 3. The combination, with a frame and a closure therefor, of a baseplate that is carried by the closure, a pair of brackets which extendfrom the base plate and beyond the edgeof the closure where they areprovided with stops, a latch member which comprises a pair of endplatesy that are connected by a bar, pivotal connections between theendy platesand the aforesaid brackets, springs for moving the latchmember so that its end plates'v engage the aforesaid stops, and a keeperof resilient material that is supported by -the'frame in a position tobe engaged by the'bar of the latch member when theclosure is in closedposition.

t. The combination, with a frame and a' closure therefor, of a baseplate, a bracket rising from each-end thereof and projecting beyond theedge ofthe' closure and having, each', `a stop, the brackets and thebase plate being-formed of a single piece of metal', a latch member thatcomprises a pair of end plates which are connected by an integrali-'barone edge whereof is turned over against itself,V pivotal connectionsbetween the end plates and the aforesaid brackets, a spring that issecured to thebase plate and engages the bar of the latch member wherebysaid latch member is moved to cause its end plates to engagethe stops ofthe brackets, and a keeper that is supported from the frame and hasl aportion that projects outwardlyfrom the frame and is then turned over inthek direction ofthe closure` the turned over portion being doubled backupon itself and snpportedin a position to be'engaged by' the bar of thelatch member.

'5. The combination, with a frame' and a closure therefor. of a baseplate carried by the closure vand having formed integral therewith ateach end a bracket which projects bevond the edge'of the closure and isprovided witha stop,'a latch member comprising apairi of end kplatesthat are connected by an integral bar, `pivotal connections between theend plates of the latch member and the aforesaid brackets, a spring;that tends to move the latch member in a direction to cause its endplates to engage the stops of the brackets, the shape and pr0- portionsof the parts being such as to cause the bar of the latch member to be inan oblique plane with respect to the direction of movement of the edgeof the closure, a keeper that is formed of resilient material and thatis supported from the frame and comprising a body portion and a portionthat is turned over in the direction of the closure wherewith the bar ofthe latch member is adapted to engagewhen the closureets, and a keeperhaving a bar receiving fportion that is adapted to contain the a oresaidbar.

7. A latch of the character described comprising, in combination, a baseplate having a pair of brackets formed integral therewith, each bracketbeing provided with a stop, a latch member comprising a keeper engagingbar and a pair of end plates formed integral therewith, ahandlesupported between the end plates, pivotal connections between theend plates and the aforesaid brackets, means tending to swing the latchmember in a direction to cause its endy plates to engage the aforesaidstops, and a resilient keeper having a bar receiving portion t0 that isadapted to contain the aforesaid bar. lin testimony whereof,y llhereunto ax my signature in the presence of two witnesses.

LEE S. CHADOK..

Witnesses:

E. Smrr, lE. J. Tnorrnn.

@epica et that patent may te obtained 1to1'` nre cent1 each, by adreaatnthe tonnmlettoner et @atenta Werkman, w

